Calculate 62+31
If 87+92=18, 57+83=13, 12+61=4 then 62+31=?Correct answers: 118
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CasterIn 1838, the first U.S. patent for a furniture caster was issued to Philos Blake, Eli Whitney Blake and John A. Blake, of New Haven, Connecticut (No. 821). The patent was titled a "mode of constructing casters and applying them to bedsteads."* |